Is 42000 a prime number?

42 000 is an even number, because it is evenly divisible by 2: 42 000 / 2 = 21 000.

Find out more:

• What is an even number?

A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 42 000 is about 204.939.

Thus, the square root of 42 000 is not an integer, and therefore 42 000 is not a square number.

The square of a number (here 42 000) is the result of the product of this number (42 000) by itself (i.e., 42 000 × 42 000); the square of 42 000 is sometimes called "raising 42 000 to the power 2", or "42 000 squared".

The square of 42 000 is 1 764 000 000 because 42 000 × 42 000 = 42 000² = 1 764 000 000.

As a consequence, 42 000 is the square root of 1 764 000 000.

42 000 is a number with 5 digits.

The multiples of 42 000 are all integers evenly divisible by 42 000, that is all numbers such that the remainder of the division by 42 000 is zero. There are infinitely many multiples of 42 000. The smallest multiples of 42 000 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 42 000 too, since 0 × 42 000 = 0
• 42 000: indeed, 42 000 is a multiple of itself, since 42 000 is evenly divisible by 42 000 (we have 42 000 / 42 000 = 1, so the remainder of this division is indeed zero)
• 84 000: indeed, 84 000 = 42 000 × 2
• 126 000: indeed, 126 000 = 42 000 × 3
• 168 000: indeed, 168 000 = 42 000 × 4
• 210 000: indeed, 210 000 = 42 000 × 5
• etc.

• Preceding numbers: …41 998, 41 999
• Following numbers: 42 001, 42 002…

Nearest numbers from 42 000

• Preceding prime number: 41 999
• Following prime number: 42 013

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• 42 000 est-il un nombre premier ?